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Zmiana struktury metod oraz logiki odpowiedzialnej za wysyłanie powiadomień wg preferencji użytkownika, obecna wersja lepiej wykorzystuje zastosowany wzorzec 'obserwator' do wyboru sposobu wysyłania powiadomień. Dodatkowo przygotowana jest struktura do obsługi wysyłania powiadomień innymi sposobami np, whatsapp czy messenger